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Subject[PATCH 1/9] ide-generic: manage I/O resources in driver
Date
* Tell IDE layer to not manage resources by setting hwif->mmio flag.

* Use {request,release}_region() for resources management.

* Use driver name for resources management.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/ide-generic.c | 21 +++++++++++++++++++--
1 file changed, 19 insertions(+), 2 deletions(-)

Index: b/drivers/ide/ide-generic.c
===================================================================
--- a/drivers/ide/ide-generic.c
+++ b/drivers/ide/ide-generic.c
@@ -94,7 +94,24 @@ static int __init ide_generic_init(void)
unsigned long io_addr = ide_default_io_base(i);
hw_regs_t hw;

+ idx[i] = 0xff;
+
if (io_addr) {
+ if (!request_region(io_addr, 8, DRV_NAME)) {
+ printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX "
+ "not free.\n",
+ DRV_NAME, io_addr, io_addr + 7);
+ continue;
+ }
+
+ if (!request_region(io_addr + 0x206, 1, DRV_NAME)) {
+ printk(KERN_ERR "%s: I/O resource 0x%lX "
+ "not free.\n",
+ DRV_NAME, io_addr + 0x206);
+ release_region(io_addr, 8);
+ continue;
+ }
+
/*
* Skip probing if the corresponding
* slot is already occupied.
@@ -109,10 +126,10 @@ static int __init ide_generic_init(void)
ide_std_init_ports(&hw, io_addr, io_addr + 0x206);
hw.irq = ide_default_irq(io_addr);
ide_init_port_hw(hwif, &hw);
+ hwif->mmio = 1;

idx[i] = i;
- } else
- idx[i] = 0xff;
+ }
}

ide_device_add_all(idx, NULL);

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